JPS6026533A - Sheet separating device - Google Patents
Sheet separating deviceInfo
- Publication number
- JPS6026533A JPS6026533A JP13315883A JP13315883A JPS6026533A JP S6026533 A JPS6026533 A JP S6026533A JP 13315883 A JP13315883 A JP 13315883A JP 13315883 A JP13315883 A JP 13315883A JP S6026533 A JPS6026533 A JP S6026533A
- Authority
- JP
- Japan
- Prior art keywords
- sheet
- endless
- peripheral edge
- pair
- separating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H3/00—Separating articles from piles
- B65H3/46—Supplementary devices or measures to assist separation or prevent double feed
- B65H3/52—Friction retainers acting on under or rear side of article being separated
- B65H3/5246—Driven retainers, i.e. the motion thereof being provided by a dedicated drive
- B65H3/5276—Driven retainers, i.e. the motion thereof being provided by a dedicated drive the retainers positioned over articles separated from the bottom of the pile
- B65H3/5284—Retainers of the roller type, e.g. rollers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Conveyance By Endless Belt Conveyors (AREA)
- Sheets, Magazines, And Separation Thereof (AREA)
Abstract
Description
【発明の詳細な説明】
本発明はシート分離装置、特に複写機・印刷機その他記
録機器等の画像形成装置において積載された複写紙・印
刷紙・記録紙あるいは原稿等のシートを１枚づつ分離・
搬送するシート分離装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention is a sheet separating device, particularly for separating stacked sheets of copy paper, printing paper, recording paper, or manuscript sheets one by one in an image forming apparatus such as a copying machine, printing machine, or other recording device.・
The present invention relates to a conveying sheet separating device.
この種のシート分離装置として、複数個のローラあるい
はベルト等の無端状体をくし歯状に間隔をあけて設けた
回転体の一対を、無端状体を互いにオーバーラツプさせ
て並設し、この一対の回転体を同一方向に回転させて、
一方の回転体上の無端状体（以下、搬送側ローラと称す
）はシートに対しシート搬送方向に回転接触させ他方の
回転体上の無端状体（以下９分離側ローラと称す）はシ
ートに対し上記とは反対方向に回転接触させ、積載され
たシートから１枚づつシートを分離・搬送するものがあ
る。As this type of sheet separation device, a pair of rotating bodies each having a plurality of endless bodies such as rollers or belts spaced apart in a comb-like pattern are arranged side by side with the endless bodies overlapping each other. Rotate the rotating bodies in the same direction,
The endless body on one rotating body (hereinafter referred to as the conveying side roller) rotates in contact with the sheet in the sheet conveying direction, and the endless body on the other rotating body (hereinafter referred to as the separating side roller) contacts the sheet. On the other hand, there is a device that separates and conveys sheets one by one from a stack of sheets by rotating them in contact in the opposite direction.
このシート分離装置において、シートの搬送力や分離力
を増すために、第１図に示す搬送側ローラ１と分離側ロ
ーラ２とのオーバーラツプ量ｔを大きくするものである
が、このオーバーラツプ量ｆを大きくすると、第２図に
示すシー）Ｐの波形折曲がり量も増大して、ローラド２
０周縁部に加わるシートＰからの反力も大きくなる。こ
のため、ロー２１１１２の周縁部は不規則に削られて分
離性能や搬送性能が著しく低下すると共に削れ粉がシー
ト面を汚す等の欠点があった。In this sheet separation device, in order to increase the sheet conveyance force and separation force, the overlap amount t between the conveyance side roller 1 and the separation side roller 2 shown in FIG. 1 is increased. If it is made larger, the amount of waveform bending of sea) P shown in Fig. 2 will also increase, and the
The reaction force from the sheet P applied to the 0 peripheral portion also increases. For this reason, the peripheral edge of the row 21112 is scraped irregularly, resulting in a significant deterioration in separation performance and conveyance performance, and also has drawbacks such as scraped powder staining the sheet surface.
本発明は上記の欠点を解消したシート分離装置を提供す
ることを目的とし、搬送側ローラと分離側ローラの少な
くとも一方の周縁部を非直角形状としたことを特徴とす
る。An object of the present invention is to provide a sheet separating device that eliminates the above-mentioned drawbacks, and is characterized in that the peripheral edge of at least one of the conveyance-side roller and the separation-side roller has a non-perpendicular shape.
図示例はｆｉｌｃ５図に示すように、搬送側ローラ１と
分離側ローラ２の周縁部を斜面１ａ・２ａに形成した構
成である。この構成によシ、シー）Ｐは滑らかに波形に
折曲がシ該シートからローラド２に加わる力は斜面１ａ
・２ａで分散されて単位面積当りの力は小さいものとな
る。この結果、前記した従来の欠点がよく解消されると
共にローラは周縁部が削られにくくなることによって耐
久性・耐摩耗性もよくなシ、シートの分離・搬送の信頼
性が格段に向上する効果がある。In the illustrated example, as shown in FIG. With this configuration, the sheet and sheet P are smoothly bent into a waveform, and the force applied from the sheet to the roller 2 is applied to the slope 1a.
・The force per unit area becomes small because it is dispersed by 2a. As a result, the above-mentioned conventional drawbacks are well resolved, and the rollers have better durability and wear resistance because the peripheral edges are less likely to be scraped, and the reliability of sheet separation and conveyance is greatly improved. There is.
実施例 第４図において、搬送側ローラ１の幅ｆ−７＋ｏ＋。Example In FIG. 4, the width of the conveyance roller 1 is f-7+o+.
分離側ローラ２の幅ａ ＝ ５ ｍ 、オーバーラツプ
量？ −０，３閣９両ローラド２の間隔１１−１閣のと
きｔ搬送側ロー２１の周縁部斜面がｄ−０，５〜１箇＋
ｅ−０，５〜３ ｍ ＋分離側ロー２２の周縁部斜面
がｂ−０，５〜２ｅｔｃ−０，５〜１１ＩＩＩの範囲で
良好な結果が得られた。％に、ｂ≧ｃ、ｅ≧ｄの寸法関
係とすることが望ましい。Width a of separation side roller 2 = 5 m, amount of overlap? -0,3 cabinets 9 When the distance between both rollers 2 is 11-1 cabinets, the peripheral slope of the conveying side row 21 is d-0,5 to 1 +
Good results were obtained when the slope of the peripheral edge of the separation side row 22 was in the range of e-0.5 to 3 m + b-0.5 to 2 etc. -0.5 to 11III. %, it is desirable that the dimensional relationship be such that b≧c and e≧d.
第５図は両１ｆｔ画像形成装置における片面コピー隣シ
ートを積載する中間トレイ部に本発明シート分離装置を
適用した両面複写可能な複写機の概要を示し、第６図は
その中間トレイ部を示す拡大図である。第５図において
、複写機は複写本体部１０゜この複写本体部１０を支え
る基体部６０．複写本体部１０のプラテンガラス１１の
形成された循環式自動原稿送り部（以下、ＲＤＦ部と称
す）５０゜複写本体部１０のシート排出口に形成された
自動綴じ部（以下、ステラプラーと称す）７０等からな
る。FIG. 5 shows an outline of a copying machine capable of double-sided copying in which the sheet separation device of the present invention is applied to the intermediate tray section on which adjacent sheets for single-sided copying are stacked in a double-sided 1-ft image forming apparatus, and FIG. 6 shows the intermediate tray section thereof. It is an enlarged view. In FIG. 5, the copying machine includes a copying main body 10° and a base 60 supporting the copying main body 10. A circulating automatic document feeding section (hereinafter referred to as the RDF section) formed with the platen glass 11 of the copying main body section 10 at 50 degrees; an automatic binding section (hereinafter referred to as the Stellar puller) formed at the sheet ejection port of the copying main section 10; It consists of 70 mag.
上記複写本体部１０には図示しない駆動源によって矢示
方向に回転駆動される感光体１２．原稿載置台１１上の
原稿画像を感光体１２上に投影するランプ１３ａ、移動
ミラー１３ｂ−１３Ｃ−１５１ｄ（１３ｃ・１３ｄは１
３ｂの１／２の速度）。The copy main body 10 includes a photoreceptor 12 which is rotationally driven in the direction of the arrow by a drive source (not shown). A lamp 13a that projects the original image on the original table 11 onto the photoreceptor 12, and movable mirrors 13b to 13C to 151d (13c and 13d are 1
1/2 speed of 3b).
固定ミラー１６ｅ、結像レンズ１３ｆよシなる走査光学
系１３．感光体１２の周囲に配置された画像形成機器と
しての前露光用ランプ１４．帯電器１５、現像器１６．
帯電器１７．転写帯電器１８゜分離帯電器゛１９．除電
器２０．クリーニング器２１、シート２２を転写位置へ
搬送する給紙ローラ２６ａ、ガイド仮２３ｂ、タイミン
グローラ対２３Ｃよシなるシート搬送系２６．無端搬送
ベルト２４ａ、ガイド板２４ｂ、ｌｆｆ−ラ対２４Ｃ〜
２４ｅ、搬送系切換え部材２４ｇよ＃）するシート排出
系２４等が設けられている。A scanning optical system 13 consisting of a fixed mirror 16e and an imaging lens 13f. A pre-exposure lamp 14 as an image forming device arranged around the photoreceptor 12. Charger 15, developer 16.
Charger 17. Transfer charger 18° Separation charger 19. Static eliminator 20. A sheet conveyance system 26 consisting of a cleaning device 21, a paper feed roller 26a for conveying the sheet 22 to the transfer position, a temporary guide 23b, and a pair of timing rollers 23C. Endless conveyor belt 24a, guide plate 24b, lff-ra pair 24C~
24e, a conveyance system switching member 24g, and a sheet discharge system 24, etc., are provided.
基体部６０には補助シート３１を前記タイミングローラ
対２５Ｇへ搬送する給紙ローラ６２ａ。The base portion 60 includes a paper feed roller 62a that conveys the auxiliary sheet 31 to the timing roller pair 25G.
ガイド板３２ｂよｐなるシート搬送系６２．複写本体部
１０からのシート受取りガイド板５３ａ。A sheet conveyance system 62 consisting of guide plates 32b and 32p. A sheet receiving guide plate 53a from the copying main body 10.
無端搬送ベル） ３３ ｂ、ローラ対５３Ｃ１中間トレ
イ部６４．シート分離搬送ローラド２．シート給送ロー
ラ６６ｄ、ガイド板３６ｅ９ ローラ対３３ｆ〜３３ｂ
よシなるシート反転搬送系３６等が設けられている。Endless conveyance bell) 33b, roller pair 53C1 intermediate tray section 64. Sheet separation conveyance roller 2. Sheet feeding roller 66d, guide plate 36e9, roller pairs 33f to 33b
A different sheet reversal conveyance system 36 and the like are provided.
ＲＤＦ部５０には、原稿載置台５１．原稿分離搬送装置
５２．原稿をプラテンガラス１１上へ給送する原稿給送
系５６．プラテンガラス１１上の原稿を原稿載置台５１
上へ戻す原稿戻し系５４等が設けられている。The RDF section 50 includes a document mounting table 51 . Document separation and conveyance device 52. A document feeding system 56 that feeds the document onto the platen glass 11. The original on the platen glass 11 is placed on the original placing table 51.
A document return system 54 for returning the document upward is provided.
ステラプラ−７０にはシート排紙ローラ対７１゜シート
積載台７２．シート綴じ手段７３．綴じ後のシート束受
数シ台７４等が設けられている。The Stella Puller 70 has a pair of sheet discharge rollers 71.degree. and a sheet loading table 72. Sheet binding means 73. A receiver 74 for receiving the sheet bundle after binding is provided.
なお、上記複写本体部１０は基体部３０に対し着脱式で
あり、また、几１）Ｆ部およびステラプラー７０は複写
本体部１０１＝対し着脱式に構成されている。The copy main body 10 is detachable from the base 30, and the box 1) F section and the stapler puller 70 are detachable from the copy main body 101.
本発明シート分離搬送装置を適用した上記中間トレイ部
６４は、第６図に示すようにシート分離搬送ロー２１・
２側が低位となるように傾斜し。As shown in FIG.
Slanted so that the second side is lower.
このシート分離搬送ロー２１・２のシート進入側に設け
られた積載シートの前端整列板６５で整列された該積載
シートを下側から１枚宛分離搬送す−る。反対に上側か
ら１枚宛分離搬送するように構成することもできる。ま
た、ローラ１−・２を無端状ベルトとしてもよい。The stacked sheets aligned by the stacked sheet front end alignment plate 65 provided on the sheet entry side of the sheet separating and conveying rows 21 and 2 are separated and conveyed one by one from the bottom. On the other hand, it can also be configured to separate and convey one sheet from the top. Moreover, the rollers 1- and 2 may be endless belts.
図示例は本発明シート分離搬送装置を両面画像形成装置
における片面コピー済シートを積載する中間トレイ部に
適用したものであるが、自ｗＪ原稿送ｐ部５０その他、
積載シートを１枚宛分離搬送するところには同様に適用
することができる。In the illustrated example, the sheet separation and conveyance device of the present invention is applied to an intermediate tray section on which single-sided copied sheets are stacked in a double-sided image forming apparatus.
The present invention can be similarly applied to the case where stacked sheets are separated and conveyed one by one.
第１図は従来のシート分離装置の正面図、第２図はシー
トとの関係を示す一部の拡大図、第６図は本発明シート
８離装置の要部拡大図、第４図はその寸法関係の説明図
、第５図は本発明シート分離装置を中間トレイ部口適用
した両面画像形成装置の概要図、第６図はその中間トレ
イ部の拡大図である。
１は搬送側ローラ、２は分離側ローラ＋１ａ・２ａは斜
面、２はオーバーシップ量。Fig. 1 is a front view of a conventional sheet separating device, Fig. 2 is an enlarged view of a part showing the relationship with sheets, Fig. 6 is an enlarged view of the main part of the sheet 8 separating device of the present invention, and Fig. 4 is its FIG. 5 is a schematic view of a double-sided image forming apparatus in which the sheet separating device of the present invention is applied to the opening of an intermediate tray section, and FIG. 6 is an enlarged view of the intermediate tray section. 1 is the conveyance side roller, 2 is the separation side roller +1a/2a are the slopes, and 2 is the amount of overship.
Claims (1)
た回転体の一対を、無端状体を互いにオーバーラツプさ
せて並設し、この一対の回転体を同一方向に回転させて
、一方の回転体上の無端状体はシートに対しシート搬送
方向に回転接触させ他方の回転体上の無端状体はシート
に対し上記とは反対方向に回転接触させ、積載シートか
ら１枚づつシートを分離搬送するシート分離装置におい
て。 前記一対の回転体の少なくとも一方の無端状体の周縁部
を非直角形状としたことを特徴とするシート分離装置。(1) A pair of rotating bodies including a plurality of endless bodies spaced apart from each other in the shape of teeth are arranged side by side with the endless bodies overlapping each other, and the pair of rotating bodies are rotated in the same direction, The endless body on one rotary body rotates in contact with the sheet in the sheet conveying direction, and the endless body on the other rotary body rotates in contact with the sheet in the opposite direction to the above, and the sheets are removed one by one from the stacked sheets. In a sheet separation device that separates and conveys A sheet separating device characterized in that the peripheral edge of at least one of the pair of rotating bodies is shaped at a non-right angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13315883A JPS6026533A (en) | 1983-07-21 | 1983-07-21 | Sheet separating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13315883A JPS6026533A (en) | 1983-07-21 | 1983-07-21 | Sheet separating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6026533A true JPS6026533A (en) | 1985-02-09 |
Family
ID=15098047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13315883A Pending JPS6026533A (en) | 1983-07-21 | 1983-07-21 | Sheet separating device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6026533A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62230540A (en) * | 1986-03-31 | 1987-10-09 | Hitachi Ltd | Paper sheets delivery mechanism |
-
1983
- 1983-07-21 JP JP13315883A patent/JPS6026533A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62230540A (en) * | 1986-03-31 | 1987-10-09 | Hitachi Ltd | Paper sheets delivery mechanism |
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